Gun-sight.



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GUN SIGHT.

APPLmATxoN FILED MAY 1, 1907.

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j. www" Immun. Il C No. 870,337. PATENTED NOV 5, 1907. J. Y. BASSBLL L P. C. BLENKNER.

GUN SIGHT.

APPLICATION FILED MAY 1, 1907.

2 SHEETS-SHEET 2.

I*ii

JOHN Y. BASSELL AND FRED C. BLENKNER, OF COLUMBUS, OHIO.

GUN-SIGHT.

Specification ot Letters Patent.

Yatented Nov. 5, 1907.

Application filed May 1. 1907 Serial No. 371.311.

To all whom it 'muy concern.:

Be it known that we, .lons Y. BAssELL and Flinn C. Bmcxns'nn, citizens of the United States, residing at- Columbus, in the county of Franklin and State of Ohio,

have invent-ed a certain new and useful Improvement in Gun-Sights, of which the following is a specification.

The invention relates more particularly to rearsights for guns, 4of the combined peep and open notch type and especially adapted for military service, and

the object oi the invention is to provide a simple., compact and durable construction that shall be capable of speedy, accurate and stable adjustment to the varying range conditions and the visual needs vot individual marksmen. An embodiment of the invention is shown in the accompanying drawings, but the invention is not limited to the precise d etails'of construction shown.

1n said drawings-Figure 1 is a front elevation of the `device with the. standard and sight-slide thereon in elevated position: Fig. 2 is a transverse seetionalview on the line ar-5r oi Fig. 1.; Fig. 3 is a transverse 'sectifwial view on the line y-fy of Figf1; Fig. 4 is a front elevation of the device with the standard and sight-slide in lowered position and showing the lower notch or battle sight in position for service; Fig. 5 is a vertical sectional view through the sighting mechanism taken on the line z-z of Fig. 1; Fig. 6 is a rear elevation of the sight-slide; I Fig. 7 is a view similar to that of Fig. 1 with the rotatable sight-disk and latching-block therefor removed; Fig. S is a view similar to that of Fig. 7 with the front leaf of the sighting member carriage and other parts removed to show the dritt-slide. Fig. 9 is a rear view of the sight-disk and locking-block.

ln the several views 1f designates a leaf or standard comprising, as usual, two parallel wingsl 2 and 2 connected at their upper ends by a bridge 3, and at their lower ends by a hinge-joint member 4 provided with an opening 4, shown in dotted lines in Fig. 1, for a hinge pintle. for connection with a Companion hinge 4() member on the rifle (not shown). The wings 2 and 2 are provided at. their inner edges with correspondingly inclined grooves or undereuts, as indicated at 5 and 5a respectively, to form an inclined guideway. The wing 2 contains a graduated scale extending substantially its entire length, and the wing 2 has a partial scale.

6 designates a drift-slide comprising a flat. plate beveled at opposite edges to lit closely, but slidably, in the guidew-.ry inA the leaf formed by the nndereuts 5 and 5,

() said drift-slide being provided with an openingl (3 to permit a line. of view through the sights to he hereinafter referred to. l

' designates a rotatable disl: containing a plurality of peep-sight, openings 7n oi different diameters, and

sight is cut all being equally dist-.int from the axis of 'lhe disk 7 is pivotally secured Said disk is thus normally pressed inwardly so that a pin or tooth 1l.l at the inner edge of a block 11 will engage notches 7 c arranged at intervals on the under sur- G5 face oi said disk to latch the disk in set position of the respective sight openings to prevent accidental rotation of the disk. Said block 1l is also rigidly secured to the dritt-slide (3 by means of screws 11b and 11 threaded into said slide at. 11l and 11 The usual 70 small. white metal lines are placed above and below the sight openings to assist the eye in aiming and in holding the gun so that the front and rear sights are in vertical alinement. The sight-disk is also provided with a series of milled ribs 7b primarily intended for engage- 75 ment by the finger-nail or other suitable instrument to rotate the disk for adjusting the various sighting apertures to sighting position. Said ribs are arranged between the various sights, thus serving.r to divide the disk into distinctive fields and segreg; i e the sight epenings and the white metal lines above and below the same for further assisting the eye in aiming. Manifestly, also, the lribs tend to protect the face of the disk trom becoming worn or polished.

12 designates a sighting member carrier or sight g5 slide and comprises a rear-plate 12a engaging the rear surface of the leaf or standard l, and a front-plate 12b engaging the front face of said leaf, said plates being secured together beyond the outer edges of the leaf wings by means oi screws 13 and 13". The plate 12' is 90 provided with ay slot 14 of a depth equal to the thickness o the leaf 1, and the walls of said slot closely engage the back and outer edges of the leaf so that the carrier is guided in a straight line verticallyA in its movement on the leaf. A set-screw 15 is employed to 95 secure the sight-slide at any desired position on the leat.v The rear-plate 12a is provided with a notch 1,6

to register with the opening G in the dritt-slide 6. The front-plate l2 is recessed, as indicated at 17, to receive the sight-disk 7 so that said disk lies flush with the 100 outer surlace of said plate. The recess 17 of the plate 12b is provided with a central opening 18 to register' with the opening GL in the dritt-slide G and notch 16 in the plate 12, whereby a through line o vision is provided for anyvof the peep-sights 7, or view lor the open notch-sight 7l in the sight-disk when the several sighting apertures are moved to sighting position. The front-plate 12" is also provided with scale-observing openings 19 and 20 the bottom edges eral sight openings in the disk when they are brought 55 an open notch-sight 7", the centers o1' the peop-sights and the center ot' the circle upon which the notch into sighting position, hence when said sigl\t-1ne1nher a ield 1U and 2O'L of which aline with the center ot the sev- 110 carriage l2 is adjusted with the edges i9" and 20L at any desired niark on the scale, the marksman may select -rom the various sights on thc disk the one best suited to the prevailing atmospheric conditions or his particular visual needs, or he may readily change from one sight to another without releasing and rcadjusting the sight member carriage on the leal'. The front-plate 12? is also provided with a slot 2l in which the screw 8 connecting tin.` dritt-slide G and siglit,disk 7 is laterally movable, thus permitting the lateral adjustment ol the sight-disk T for drift correction. The block. 1l, heretofore referred to, is also seated in the recess 17 in the iront-plate and lies adjacent to the sight-disk with its upper edge curved to conform to the curvature oi said disk. The front-plate l2 is also provided with slots 22 and 22 for the passage and lateral movement oi the screws lll and 11 connecting the block 11 and the drift-slide G. Said registering block ,ll is also provided, midway between its ends, with a white metal piece, oi triangular shape, the apex of which lies in the curved edge of the block and in alincment with t-lie white metal lilies above and below the sights on the disk when such sights are moved to sightingposition. The iront-plate l2b also carries a notch or battle sight 23 which is, as usual, arranged at a fixed elevation, and in the present construction may be brought into service in any position of the sight-slide or carriage by throwing down the leal'.

To prevent'. adhesion of the parts duc to corrosion, a thin non-corrosive metal plate 24 is inserted between the sight-disk and the sight-slide, and a similar plate 25 is intcrpiilsed between the sliding-block 11 and said sightslide.

In operation the sight-slide or carrier is moved to the desired lange mark on the scale with the lower edge of the scale-observing opening coinciding with the range mark. It will readily be seen from the foregoing description of the construction, that, as the sight slide is moved to the desired range elevation there is an automatic lateral movement ol` the sighting member ior dritt correction. It will also be seen that a sight ing member is provided that will fullil, within a wide range of possibilities, the needs oiindividual marks nien as determined by their different visual characteristics or the variable atmospheric conditions. When the sight-slide is adjusted to the desired mark by moving the lower edge of the scale-observing opening into coincidence with the range mark on the scale and securing the sight-slide by means oi the sensoren', thel marksman, by merely rotating the disk, can then select the sight; best suited to his individual needs and no further adjustment of the ,it-slide is necessary for changing the sight openmi at the determined range.

As the parts are lew and simple the device may he assembled with case, furthermore, the construction is strong and durable and in use may be adjusted with speed and cxactncss by the most. inexperienced soldier.

What we claim and desire to secure by Letters Patent l. ln n gun sight, thc combination of a leaf having il wrlleal culdewuv and u guldewuy to provide'for (lrll'tugn correction, n cuil-ier on snld leaf comprising a part: movvivuul able on und controlled by said vertical guideway and a part movable on :tud controlled by said driftagc gnldcwny, a rotatable sighting; member connected with the part of said carrier contr-oiled by the drlftage gudcway and en- ,caged ly the part nl" the carrier controlled by the vertical auideway, said sighting member havingr a plurality of sight. apertures of various sizes the sighting centers of which are equally distant from the axis of rotation of salti member.

2. In a gun' sight, the combination of u leaf having a vertical guideway and a gnideway to provide for driftage correction, a carrier on said leal' comprising a part movable on and controlled by said vertical guideway and a part: movable on and controlled by said drit'tage guideway, a rotatable sighting member connected with the part of said carrier controlled by the dril'tage guidcway and en caged by the part of the carrier controlled by the vertical guideway. said sighting member' having a. plurality of sight apertures of various Sizes the sighting centers of which are equally distant from the axis of rotation of said member. and a lower notch or battle sight on the part of the carrier controlled by said vertical guideway whereby said battle sight moves in a substantially vertical line in adjusting said carrier.

.'l, in a gun sight, the combination of a'leaf having a vertical guidcway and a guideway for driftage correction. a slide movable in and controlled by the guidcway for driftage, a rotatable sighting member carried by said slide, said rotatable member having sight apertures of various sizes the sighting centers of which are equally distant from the axis of rotation of said member, a second slide movable on and controlled by said vertical guideway, said second slide having a scale-observing opening, the edge of the slide below said opening alining with the Several sight openings when the latter are in sighting position.

1. 1n a gun sight, the combination of a leal' having a vertical Vsuidcway and a guideway for driftage correction, a carrier on said leaf comprising a part movable on and controlled by said vertical guidcway and a part; movable on and controlled by said driftage guideway, :i recess in the part controlled by the vertical guideway, a rotatable siichting,r member provided with sight apertures of various sizes the sightinf.; centers of which are equally distant from the axis of rotation of said member, said sighting member being seated in said recess in the part of the carrier controlled by the vertical guideway and connected with the part of the carrier controlled by the driftage guidcway. i

5. In a gnu sight', the combination of a sight leaf and a rotatable sighting member thereon having a plurality of sight openings, said sighting member being provided on its outer face with a scrics of radial ribs intermediate said sight openings and dividing the outer' surface of the sighting member into separate and distinct fields for the several sight openings.

G. In a gun sight, the combination of a sight leaf provided wth a vertical guideway and a guideivay to provide for driftagc correction, n sighting member having a plurality of sight openings of various sizes the sighting centers of which are equally distant from the axis of rotation of said member, a carrier for the sighting member comprising a part movable on and controlled by said vertical guideway and a parl: movable on and controlled by said drlftagc gudeway, said sighting member being rotatably connected with the part: controlled by the drittage guideway4 and said sighting member being engaged by the part controlled by the vertical guidewny, and a latching device for said sighting1 member comprising a block connected with the part: of thc'carrier controlled by the driftage euidcwny. said block havin.;r a projection at its edge adapted to engage notches provided at the edge of the under surface ol the rotatable sighting member' to hold the latterln set position for sighting.

7. 1n a gun sight, the combination of a leaf having a guideway to provide for driftuge correction, a slide movable in and controlled by said guidcwaypa rotatable slghting member carried by said slide, said rotatable member having,r sight apertures of various sizes the sighting centers of which are equally distant from the axis of rotation of said member, guide lines for the sight apertures on the sighting member, and un index carried by Suid slide for vertical alinement with said guide lines when the several sight apertures are in sighting position.

8. In a gun sight, the combination of n leaf having a vertical guidcn'ay nml :i gnidewa'y to provide for drlttnge correction` n cnrrier on snid leaf comprisiinef u slide movable in and controlled by the driftuge gnidcwuy and a slide movable on and controlled by the vertical gnidewnx` n rotatable sighting member carried by the slide on the vertical gnldcway and connected with und controlled for drlft'age by the slide in the driftnge gnideway, said sighting member having sight apertures oi? various sizes, the sighting centers of which are equally distant from the axis of rotation of said member.

9. In :1 gun sight, the combination of a lenf baring a vertical gnidewny und n guideway to provide for drifingc correction, a carrier on said leaf comprising a slide movable in and controlled by the driftage guidon-ay and a slide movable on and controlled by the vertical guidevvay, 11 rotatable sighting member carried by the slide on the vertical guideway and connected with and controlled for vdrftage by the slide in the driftage guldeway, a latchng member carried by the slide on the vertical guideway and connected with and controlled for driftngc by the slide in the driftuge gnidewny, and means on the sighting member to be engaged b v said lntching member to lntch the sighting member in sighting.r positlon.

10. In n gun sight, the combination of a len( having a vertical guidewny :md a gnldeway to provide for driil'ege correction, a carrier on said leaf comprising a slide movable in and controlled by the drlftnge guideway and a slide movable on und controlled by the vertical guideway, n rotatable sighting member carried by the Slide 0n the vertical gnidcwny and connected with and controlled for driftnge by the slide in the drttnge gnideway, said sighting member having sight apertures of various sizes, and :l lower notch or battle sight on the slide controlled by the vertical guideway.

JOHN Y. BASSELL. FRED C. BLENKNER.

Witnesses to both signatures: BENJAMIN FINCKEL, Amon B. COOK. 

